Tr
aile roperation Note
sont owing atrailer &
WARNING Risk of accident‑ and inju ryif
th el oad is exceeded
If yo ue xceed thep ermitted load when using
th er ack, ther acks ystemm aydisconnect
from thev ehicle and endanger other road
users. #
Alwaysc ompl ywitht he permitted load
when using ther ack. &
WARNING Swerving of thev ehicle/
trailer combination due toinc reased
speed
If th ev ehicle/trailer combination swer ves,
yo uc an lose control of it.
The vehicle/trailer combination can even tip
ove r. #
Under no ci rcums tances shoul dyou try
to inc rease thes peed tostra ighten the
ve hicle/trailer combination. #
Reduce speed and do no tcounter-s teer. #
If necessar y,appl ythe brakes. &
WARNING Risk of accident du etothe
brak esystem overheating
If yo ul eave your foot on theb rake pedal
when driving, theb rake system ma yoverheat.
This increases theb raking dis tance and the
brak esystemm ayeve nfail. #
Neveru se theb rake pedal as afootrest. #
Do no tdepress theb rake pedal and the
accelerator pedal at thes ame time
while driving. &
WARNING Danger of accident du eto
unsuitable ball coupling
If yo ui nstall an unsuitable ball coupling, over‐
loading of thet railer hitc hand rear axle will
be ther esult. This is particularly thec ase if
th eb all coupling is relatively long or angled
dif fere ntl y.
The handling characteristic smaybe heavily
impaired and thet railer can become
de tach ed. Ther eisarisk offata linjur y. #
Only ins tallab all couplin gthat meets
th ep ermitted dimension sand has been designed
fort he trailer operation
re qu irements. #
Do no tmodif ythe ball coupling or the
traile rhitch. &
WARNING Risk of accident and injury
du etoani ncorrectl yins talled ball cou‐
pling
If th eb all coupling is no tins talled and
engaged cor rectly ,itm aybecome de tach ed
during tr avel and endanger other road users.
Ther eisar isk offata linjur y. #
Install and secur ethe ball coupling as
described in theb all coupling manufac‐
turer's ins tallation instructions. #
When theb all coupling has been ins tal‐
led, ensur ethat it is cor rectly secu red
befor eevery trip. &
WARNING Risk of accident du etoan
incor rectl yins tal led and secured ball
neck
If th eb all nec kisnotcor rectl yins talled and
secured, thet railer can become de tach ed. #
Install and secur ethe ball nec kas
described in theb all nec kmanufactur‐
er's ins tallation instructions. #
When theb all nec khas been ins talled,
ensur ethat it is cor rectly secu red
befor eevery trip *
NO
TEWearing out theb rake linings by
continuously dep ressing theb rake pedal #
Do no tdepress theb rake pedal continu‐
ously whils tdriving. #
Touse theb raking ef fect of thee ngine,
shif ttoa lowe rgear in good time. Alw
aysc ompl ywitht he operating instructions of
th em anufacturer of thet railer coupling and the
ball nec k.
Place your vehicle/trailer combination on sur fa‐
ces that ar ease vena spossible and secu reit
agains trolling away ( /pag e133). Coupl eand
uncoupl ethe trailer carefully.
When backing up thet ow ing vehicle, ensur ethat
th er eisn o-one between thev ehicle and the
traile r. 16 0
Driving and pa rking
documents
tosee them aximum permissible
speed fory our trailer.
Yo ur vehicle will act dif fere ntly wi thatrailer rela‐
tiv etow ithout atrailer ,and will consume more
fuel. In thec ase of along and steep descent, you
mus tselect shif trange 3,2or 1in good time.
% This also applies if
thec ruise cont rolis
switched on.
Yo uw illthereb ymakeu se of thee ngine' sbraking
ef fect and will no thave tobrak easo ften tocon‐
trol thes peed. This will take some of thes train
of ft he brak esystema nd pr event theb rake sf rom
ove rheating and wearing tooq uickl y.Ifyo un eed
additional braking, depress theb rake pedal inter‐
mittently rath er than continuousl y.
Drivin gtips
If th et railer sw ays, remember thef ollowing
points:
R Do no taccelerat eunder an ycircums tances.
R Do no tcounter steer.
R If necessar y,appl ythe brakes.
% Yo
uc an pr eventthet railer from sw aying and
rock ingbyretrofitting stabilizer bar sortrailer
st abilit yprograms. Youc an obtain fur ther
information from an authorized Mercedes-
Benz Center.
R Maintain alarge rd ista nce than when driving
without atrailer.
R Avoid braking abruptl y.If possible, brak egen‐
tl yf irst of al lsot hatthet railer closes up
behind your vehicle. Then, increase theb rak‐
ing forc er apidl y.
R The values given fors tart-o ff gradeability
re fertos ea level. When driving in moun tain‐
ous areas, no tethat engine output, and there‐
fo re start-of fgradeability ,will dec rease with
inc reasin galtitude. Coupling/uncoupling
atrailer Coupling
atrailer
* NO
TEDama getothev ehicle batter ydue
to full discharge Charging
thet railer batter yusing thep ower
supply of thet railer can damag ethe vehicle
batter y. #
Do no tuse thev ehicle's po wersupply
to charge thet railer batter y. #
Shif tthe selector le vertop osition 005D. #
Appl ythe vehicle's parking brake. #
Close all thed oors. #
Position thet railer on alevel sur face behind
th ev ehicle.
% The ball head height
changes depending on
th ev ehicle's load. In this case, use atrailer
wit hah eight-adjus table trailer dr awbar. #
Couple up thet railer. #
Establish all electrical and other connections
to thet railer. #
Remo veobject sordevices whic hpreve nt the
traile rfromr olling, e.g. wheel choc ks. #
Release thet railer's parking brake.
% The
vehicle harness has acable connection
to theb rake light indicator lamp.
Obser vethem aximum permissible trailer dimen‐
sions (widt hand length).
Mos tUSs tatesa nd all Canadian pr ovinces pre‐
scribe thef ollowing points, and youa reurge ntly
re commended tocomply wi th these:
R Safetyc hains between thet ow ing vehicle and
th et railer .The chains should be routed in a
criss-cross pat tern unde rthe trailer dr awbar.
The ym ustbec onnected tothet railer tow
hitc hand no ttothe bumper or tothev ehicle
axle.
Lea vesuf ficient sla ckinthec hains. This
allo wsfore vens harp cornering.
R Aseparat ebrake system is requ ired forc er‐
ta in trailers.
R Asafet yf eatur eisrequired forb rake dt railers.
De term ine thes pecific requ irements acco rd‐
ing tother ele vant la ws.
If th et railer becomes de tach ed from thet ow‐
ing vehicle, thes afet yf eatur etrigger sthe
trailer brakes and can thus reduce thed anger.
Un coupling atrailer &
WARNING Risk of being crushed and
becoming trapped whe nuncoupling a
trailer
Whe nuncoupling atrail er wi than engaged
ine rtia-activated brake, your han dmay
become trapped between thev ehicle and the
traile rdrawbar. #
Do no tuncouple trailer swithan
engaged overrun brake. 16 2
Driving and pa rking
#
Only operat ethis equipment when the
traf fics ituation permits. #
Ifyo uc anno tbes ureoft his,stop the
ve hicle whils tpaying attention toroad
and traf ficc onditions and ope rate the
equipment wit hthe vehicle stationar y. When using
thep hone, youm usto bse rvet he
legal requirements fort he countr yinwhichyou
ar ec urrently driving.
Re quirements:
R The mobile phone is connec tedtot he multi‐
media sy stem.
On-boar dcomputer:
4 Phone
Select one of thef ollowing options:
R Prev ious calls
R Phon ebook
R Call status
Ve hicles with MBUX multimedia sy stem: the
mos trecen ttelephone calls (dialed numbers,
accep teda nd missed calls) ar edispla yedont he
Phone menu. #
Select and confir matelephone number.
If onl yone telephone number has been
sa ve df or th eentry: thet elephone number
is dialed. #
If se veraltelephone number shave been
sa ve df or th eentry: select and confir ma
te lephon enumbe r.
The telephon enumbe risdialed.
Ins tead of thes elected telephon enumbe rs,t he
fo llowing displa ysma yappear:
R Please Wait :The application is cur rently start‐
ing .IfnoB luetooth ®
connection tothem obile
phone is es tablished, them enu fora uthoriz‐
ing and connecting amobilephone willbe
displa yedint he multimedia sy stem
(/ page231).
R Updating Data… :The call lis tisbeing upda‐
te d.
R Importing Contacts:T he mobile phone's con‐
ta cts, or amemo rymedium's contacts are
being impor ted.
Ac cepting/rejecting acall
When youa recalled, theIncoming Call message
appear sonthe displa y. #
Press 0061toaccep tthe call or 0076to
re ject it.
Yo uc an also accep torreject thec all using the
0061 or0076 buttons on thes teering wheel. Calling up settings on
theo n-boa rdcompu ter On-boar
dcomputer:
4 Settings
The following ent ries can be se tonthe Settings
menu:
R Light
- Setting Instrument lighting
R Vehicle
- Switching Regensensor (Rain sensor) on
and off
R Setting Heating
R Display and Operation
- Switching permanent Display DEV Level
on and off #
Select an entr yand con firm thes election. #
Mak ethe necessar ychanges. Instrument Displa
yand on-boar dcomputer 17 3
#
Nevertouc hthe danger zone sur round‐
ing movin gcomponent parts ,e.g.t he
ro tatio na reaoft hefan. #
Remo vejewe lrya nd watches. #
Keep items of clo thing and hair away
from moving parts. &
WARNING Risk of bu rnsf romh otcom‐
ponent parts in thee ngine compartment
Cer tainc omponents in thee ngine compart‐
ment can be very hot, e.g. thee ngine, the
ra diator and parts of thee xhau stsystem. #
Allo wthe engine tocool down and only
to uc hc omponent parts desc ribed in the
fo llowing. If
yo uh ave tocar ryout an yworkint he engine
compartment, touc ho nlyt he following compo‐
nents:
R Hood
R Engine oil filler openin gcap
R Washer fluid reser voir cap
R Coolant expansion reser voir cap #
Open theh ood (/ page264). #
Remo vedirtfromw ater drain valve 2 of air
intak ebox1 . Draining
thef uel filter &
WARNING Danger of fire and explosion
due tofuel
Fu els ar ehighly flammable. #
It is essential toavoid fire ,o pen flames,
smokin gand creating spar ks. #
Befor efilling up, switc hoffthee ngine,
and, if applicable, thea uxiliar yheating. &
WARNING Risk offire and explosion due
to fuel
Fu els ar ehighly flammable. Ther eisarisk of
fi re and explosion due tocontact wi thhot
component parts. #
Allo wthe engine and thee xhau stsys‐
te mtoc ool down. *
NO
TEEngine damag eduetodela yed
drainag eofthe fuel filter Ve
hicles with adiese lengine: delayed
drainag eofthe fuel filter can lead toengine
damage.
If the 003A indicator lam plights up, drain the
fuel filter immediately. +
ENVIRONMENTAL
NOTEEnvironmental
pollution du etodisposal in anon-envi‐
ro nmental ly-friendly manner #
Dispose of thew ater/fuel mixtur einan
environmentally-friendly manner. Mo
torO M642 #
Park thev ehicle in asafel ocation and secure
it agains trolling away. #
Switc hoffthea uxiliar yheating
(/ page101). #
Switc hoffthee ngine. #
Open theh ood (/ page264). Maintenanc
eand care 271
#
Place asuitable collector beneat hdrain hose
2. #
Switc hont he ignition. #
Open drain scr ew1 until thew ater/fuel
mixtur eemerges from drain hose 2.#
Close drain scr ew1 as soon as around
0. 2qt( 0.2l iter) of thew ater/fuel mixtur ehas
been collected.
Af ter30s econds, thee lectrical fuel pump
automaticall ystops thed ischarg eofthe
wate r/fuel mixture. #
Afterd raining, switc hoffthei gnition. #
Dispose of thec ollected water/fuel mixture
in an environmentally responsible manner,
e.g. at aqualified specialis tworks hop. #
Chec kthat drain scr ew1 has been closed.
If th ee ngine is running whil edrain scr ew 1
is open, youw ill lose fuel thro ugh drain hose
2. #
Close theh ood (/ page264). #
003A The indicator lam pdoes no tgoout
af te rd raining: drainthe fuel filter again. #
003ATh eindica torlam pd oesn otgo out
af te rt he second draining: consultaquali‐
fi ed specialis tworks hop.
Mercedes-Benz recommends that youh avet he
fuel filter drained at aqualified specialis twork‐
shop. Cleaning and care
Note
sonw ashingthe vehicl einana utomatic
car wash &
WARNING Risk of accident du eto
re duced braking ef fect af terw ashing the
ve hicle
The braking ef fect is reduced af terw ashing
th ev ehicle. #
Aftert he vehicle has been washed,
brak ecarefully while paying attention to
th et raffic condition suntil theb raking
ef fect has bee nfully restored. *
NO
TERisk of damag etothe paintwork
and plastic components If
yo uw ash your vehicle in Touchles sAuto‐
matic Car Wash sy stems that use special
cleaning agents, thec leaning agentsu sed can damag
ethe paintwor korplastic components
of thev ehicle. #
Do no twash thev ehicle in Touchless
Au tomatic Car Wash sy stems that use
special cleaning agents. Mak
esuret hat thea utomatic car wash is suitable
fo rt he size of thev ehicle.
Befor ewashing thev ehicle in an automatic car
wa sh, fold in theo utside mir rors and remo veany
additional antennas. Otherwise, theo utside mir‐
ro rs,a ntennas or thev ehicle itself could be dam‐
aged.
Mak esurea nyadditional antennas ar ere-in stal‐
led and that theo utside mir rors aref ullyf olded
out again when youl eave thea utomatic car
wa sh.
To avo id damag etoyourvehicle, obser vethef ol‐
lowing befor eusing an automatic car wash:
R thes ide windo wsand thes liding windo ware
comple tely closed.
R theb lowe rfor ventilation and heating is
switched off.
R thew indshield wiper switc hisinposition005A.
If th ev ehicle is very dirty ,wash of fexcess dirt
befor ecleaning thev ehicle in an automatic car
wa sh.
% Re
moving thew ax from thew indshield and
th ew iper rubber safter wa shing thev ehicle,
will help avoid smearing and reduce wiper
noise. Note
sonu se ofapowe rwasher &
WARNING Risk of accident whe nusing
high-pressu recleaning equipment wi th
ro und-spr aynozzles
The wate rjet from around-spra ynozzle (dirt
grinder) ma ycaus edamag etotires and sus‐
pension components that is no tvisible.
Component sdamaged in this wa ym ayfail
unexpec tedly. #
Do no tuse high-p ressur ecleaning
equipment wit hround-spra ynozzle sto
clea nyour vehicle. #
Damaged tires or suspension compo‐
nentsm ustber eplaced immediatel y. Ne
veru se ap owe rwashe rinthevehicle interior.
The pressurized watercreated bythep ower 272
Maintenance and care
Note
sonc leaning and car eP reve nting damag etothevehicle
Ste ps
R
Clea nthe electrically operated steps
and their housing wit hapower
wa sher.
R Afterc leaning, spr aythel ateral
guides wit hsilicone spr ay.
R Clean thes teps in theb umper wit ha
po we rw ashe r. Do no
tuse oil or grease as alubricant.
Aluminum
dropsides R
Brush down thea luminum dropsides
wit hw ater and aneutral or mild alka‐
line cleaning agent. Do no
tuse abrasiv ecleaning agents to
clea nthe dropsides. Note
soni nterior care &
WARNING Risk of inju ryfrom pla stic
parts breakin goffafte rt he use of sol‐
ve nt-based car eproducts
Ca reand cleaning products con tainin gsol‐
ve nts can cause su rfaces in thec ockpit to
become porous.
When thea irbags ar edeplo yed, plastic parts
ma ybreak away. #
Do no tuse anyc areorc leaning prod‐
ucts containing sol vents toclea nthe
cockpit. &
WARNING Risk of inju ryor deat hfrom
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, fore xamp le, cause seat belt stotear
or fail in an accident. #
Neverb lea ch or dy eseat belts. Obser
vethef ollowing no tes: Note
sonc leaning and car eP reve nting damag etothevehicle
Seat belts Clean withlukewa rmsoap ywater. R
Do no tuse chemical cleaning
agents.
R Do no tdrythes eat belt byheating
abo ve176°F( 80 °C) or in direct
sunlight.
Display Cleanthes urface carefully wi tham icro‐
fi ber clo thand LCD/TFT displ aycare
product. R
Switc hoffthed ispla yand le titcool
down.
R Do no tuse an yother agents.
Plastic trim R
Clean wit hadampm icrofiber clo th.
R Forh eavy soiling: use car eproduct
re commended forM ercedes-Benz . R
Do no taffix sticke rs,f ilms or similar.
R Do no tallowtoc ome int ocontact
wi th cosmetics, insect repellent and
sun creams.
Re alwo od/
trim ele‐
ments R
Clean wit hamicro fiber clo th.
R Blackpiano-lacquer look: clean with
ad am pcloth and soap ywater.
R Forh eavy soiling: use car eproduct
re commended forM ercedes-Benz . Do no
tuse sol vent-based cleaning
agents, polishes or waxes. 276
Maintenance and care
R
Use sno wchains only when ther oad sur face
is comple tely sno w-covered. Re mo vethe
sno wchains as soon as possiblew henyou
come toaroad that is no tsnow-covered.
R Local regulations ma yrestrict theu se of
sno wchains. Obser vethea pplicable regula‐
tions befor einstal ling sno wchains.
R Activat eall-whee ldrive before driving of fwith
sno wchains (/ page120).
R If sno wchains ar einstalled, them aximum
permissible speed is 30 mph(50 km/h).
R Vehicles with Parking Assis t:do no tuse
Pa rking Assis tPARKTRONIC if sno wchains
ar ei nstalled.
% Youc an deactivat eESP®
to pull away
( / pag e139). This all ows thewheels to
spin, achieving an increased driving forc e. Ti
re pressure Note
sont irep ressure &
WARNING Risk of accident du etoinsuf‐
fi cient or excessiv etirep ressure
Underinfla tedoro verinfla tedt ires pose the
fo llowing risks:
R The tires ma yburst,e speciall yasthe load
and vehicle speed increase.
R The tires ma ywear excessively and/or
une venly ,w hich ma ygreatly impair tire
traction.
R The driving characteristics, as well as
st eering and braking, ma ybegreatly
impaired. #
Compl ywitht he recommended tire
pressur eand checkt he tir epressur eof
all tires including thes par ew heel regu‐
larly:
R at leas tonce amonth
R when thel oad changes
R befor eembarkin gonalongerjourney
R if operating conditions change, e.g .off-
ro ad driving #
Adjus tthe tir epressur easn ecessar y. Driving wi
thtirep ressur ethat is tooh igh or too
lo wc an:
R Shor tent he service lif eofthe tires. R
Cause increased tir edamage.
R Adversely af fect handling characteristic sand
th us drivin gsafet y, e.g. due to hydroplaning. &
WARNING Risk of an accident du eto
insuf ficient tir epressu re
Ti re sw ithp ressur ethat is tool ow can over‐
heat and bur stas aresult.
In addition ,the ya lso suf ferf rome xcessive
and/or ir regular wear,w hic hc an significantly
impair theb raking properties and theh an‐
dling characteristics. #
Avoid excessively lo wtirep ressures in
all thet ires, including thes par ew heel. Ti
re pressur ewhichist oo lo wcan cause:
R Tire malfunctions as aresult of overheating
R Impaired handling characteristics
R Irre gular wear
R Increased fuel consum ption &
WARNING Risk of accident from exces‐
siv etirep ressure
Ti re sw ithe xcessively high pressur ecan bur st
because they ared amaged mor eeasil yby
highw ayfill, po tholes etc.
In addition, they also suf ferf romi rregular
we ar,w hic hc an significantl yimp air theb rak‐
ing properties and theh andling characteris‐
tics. #
Avoid excessively high tir epressures in
all thet ires, including thes par ew heel. Excessively high tir
epressur ecan result in:
R Increased braking dis tance
R Impaired handling characteristics
R Irre gular wear
R Impaired drivin gcom fort
R Susceptibility todamage &
WARNING Risk of accident caused by
re peated drop in tir epressure
If th et irep ressur edrops repeatedly ,the
wheel, valveort irem aybe damaged.
Insuf ficient tir epressu recan cause thet ires
to bur st. #
Inspect thet iref or signs of fore ign
objects. 296
Wheels and tires
tire's ability
tocome toas tandstill on awetpave‐
ment under controlle dconditions on aspecified
U. S. go vernment test sur face mad efroma sphalt
and concr ete.
Te mp eratur egrade &
WARNING Risk of accident from tire
ove rheating and tir efailure
The temp eratur egrade fort his tir eisestab‐
lished forat iret hat is properly inflated and
no to verloaded. Excessiv espeed, underinfla‐
tion, or excessiv eloading, either separatel yor
in combination, can cause excessiv eheat
build-up and possible tir efailure. #
Obser vether ecommended tir epres‐
sures and regular lych eckt he tir epres‐
sur eofa ll tires including thes pare
wheel. #
Adjus tthe tir epressur easn ecessar y. The
temp eratur egrades ar eA(highes tgrade), B
and C. These relat etoat ire'sresis tance toheat
and its ability torelease heat on aspecified test
wheel in laborator ytests under cont rolled condi‐
tions. Sus tained high temp eratures can cause the
material of thet iretod egenerat eand reduce tire
life. In addition, excessivel yhigh temp eratures
can lead tosudden tir efailure. Grade Crefer sto
ap erform anc ewhicha ll passenger vehicle tires
mus texhibit, accordin gtotheU.S. Depa rtment
of Transpor tation's requ irements. Information on DO
Tand TIN (Tir eIdentifica‐
tion Number) U.
S. tir eregulations indicat ethat everyt irem an‐
ufacturer or retreade rmustimp rint aT IN in or on
th es ide wall of eac htirep roduced. %
The dat
ashown in thei llustration is sample
data. The TIN is
aunique identification number fort ires
and consists of thef ollowing components:
R DOT(Department of Transportation): tire
symbol 1indicates that thet irec omplies
wit hthe requ irements of theU .S. Depa rtment
of Transpor tation.
R Manufacturer identi fication code: manu‐
fa cturer identification code 2prov ides infor‐
matio nabout thet irem anufacturer .New tires
ha ve ac odew itht wo symbols. Retreaded
tires ha veac odew ithf our symbols.F or fur‐
th er information about retreade dtires, see
(/ page 310).
R Tire size: identifier 3describes thet ires ize.
R Tire type code: tire typecode 4can be
used bythem anufacturer as acode to
describe specific characteristic softhe tire.
R Dat eofm anufactu re:date of manufacture
5 prov ides informatio nabout thea geof a
tire. The 1s tand 2nd number sindicat ethe
calendar week and the3 rdand 4t hnumbers
indicat ethe year of manufactur e(e.g. "3208"
re fers to the3 2ndw eek of they ear 2008). Information on maximum tir
eload %
The dat
ashown in thei llustration is sample
data.
Maximum tir eload 1isthem aximum permissi‐
ble weight forw hichthe tir eisa pprove d.
Do no toverload thet ires by ex ceeding them axi‐
mum permissible load. The maximum permissible
load can be found on thev ehicle's Tire and Load‐
ing In form atio nplacar dont he B-pillar on thed riv‐
er's side (/ page302). 306
Wheels and tires